A whole house (Not super big). It would have a entrance/living room, kitchen, Parent's Bedroom, Boy and Girl bedrooms, a secret vent system that goes to all rooms (Vents have a central hub that forms a mini room), a game room (Has a pool table in it which has secret tunnels in it that connect different pockets), A sort of mini garage without car, a mini attic, and maybe a couple of mouse holes here and there that form little coves.
